/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataCacheUsageStats.h
[TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), [FDerivedDataCacheUsageStats](API\Developer\DerivedDataCache\FDerivedDataCacheUsageStats) > ToLegacyUsageMap() const